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ATSUI Style and Text Layout Objects

This chapter describes the objects that ATSUI uses for text layout and style information: text layout objects and style objects. A text layout object contains the information that controls the display and formatting of the text associated with the text layout object. A style object contains a collection of stylistic attributes that can be applied to text runs within the text associated with a text layout object.

Any ATSUI function that sets or retrieves stylistic or layout information uses text layout and style objects, which is why you should read this chapter if you plan to call ATSUI functions in your code. This chapter

• describes the information contained in style and text layout objects

• provides a description of the ATSUI tags you use to specify style attributes and control text layout

• provides illustrations to show how settings effect the way ATSUI renders text

To understand this chapter, you should first read “Typography Concepts.”

Contents:

Style Objects
Text Layout Objects

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